Wetland Mitigation, Volume 2, A Guidebook for Airports (2019) / Chapter Skim
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Pages 46-51
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From page 46... ...
46 4.1 Introduction Regulatory agencies require project sponsors to avoid and minimize impacts to the greatest degree practicable, and then provide compensatory mitigation to offset unavoidable impacts. As discussed in Chapter 2, more than one agency (federal, state, and/or local)
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From page 47... ...
Mitigation Types 47 0 and 3 (Miller and Gunsalas 1997)
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From page 48... ...
48 Wetland Mitigation, Volume 2: A Guidebook for Airports As Table 4-1 shows, the sum of the six parameter sub-scores is divided by 18 to obtain an overall quality score between 0 and 1.0. This quality score is then multiplied by the size of the affected area to obtain the functional value of the wetland.
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From page 49... ...
Mitigation Types 49 mitigation must be created at an appropriate distance from the airport to avoid the creation of a potential wildlife attractant and could incur substantial costs associated with land acquisition, as well as wetland design, construction and monitoring, and the establishment of a protective easement. Therefore, permittee-responsible mitigation is not usually preferable when an alternative option is available.
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From page 50... ...
50 Wetland Mitigation, Volume 2: A Guidebook for Airports 4.4 Wetland Mitigation Methods Many methods are used to generate mitigation credits. Any of these methods can be used with any of the mitigation options mentioned previously.
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From page 51... ...
Mitigation Types 51 the amount of credit generated. Note that assessment methodologies are constantly changing and evolving to be more accurate, efficient, and user friendly.
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